GTAC Observation Log 1. Date : 04/05/2018 2. Observation Sr. No. : 10227 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson, Matthew Kerr 4. Observer's Email : jroy@ncra.tifr.res.in, paul.ray@nrl.navy.mil, bhaswati@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, chengalur@ncra.tifr.res.in, ksanjay@gmrt.ncra.tifr.res.in, tyrel.j.johnson@gmail.com, matthew.kerr@gmail.com 5. Project Name : Long-term timing follow-up for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 34_048 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd/jroy/34_048_5may.cmd 9. LTA File : /gsbifrdata1/04may/34_048_04may2018_gsb_band4.lta, /gsbifrdata1/04may/34_048_04may2018_gsb_band3.lta, /gwbifrdata2/04may/34_048_04may2018_gwb_band4.lta, /gwbifrdata2/04may/34_048_04may2018_gwb_band3.lta 10. LogFlag File : /odisk/online1/logflags/34_048A.FLAGS, /odisk/online1/logflags/34_048.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,OFF, IF-CH2 : 4+14 dB, 32 MHz,OFF GSB SETTINGS : 14. GSB Host : gsbm1_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 May 2018 20:00:00 - 04 May 2018 21:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF2 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 34_048A GPU_RF4 : 850 850 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 34_048 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : PA GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- #325MHz# sub 2 # C00 C01 C02 C05 C12 C14 E06 S06 ante 8 7 6 5 19 2 10 23 30 cp 0;defs 2;subar 2 #610MHz# sub 4 # C03 C04 C06 C08 C09 C10 C11 C13 W01 W02 W03 W04 W05 W06 E02 E03 E04 E05 S01 S02 S03 S04 ante 22 1 3 20 24 4 12 9 11 8 13 14 15 16 25 17 18 21 22 26 27 28 29 cp 0;defs 4;subar 4 # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C05 C12 C14 Total=6 # BEAM-1:175 :: C00 C01 C02 C05 C12 C14 Total=6 # BEAM-2:130 :: C03 C04 C06 C08 C09 C10 C11 C13 E02 E03 S01 S02 S03 S04 W01 W02 W03 W04 Total=18 # BEAM-2:175 :: C03 C04 C06 C08 C09 C10 C11 C13 E02 E03 S01 S02 S03 S04 W01 W02 W03 W04 Total=18 # GWB GAC configuration is as follows : # BEAM-3:130 :: C00 C01 C02 C05 C12 C14 Total=6 # BEAM-3:175 :: C00 C01 C02 C05 C12 C14 Total=6 # BEAM-4:130 :: C03 C04 C06 C08 C09 C10 C11 C13 E02 E03 S01 S02 S03 S04 W01 W02 W03 W04 Total=18 # BEAM-4:175 :: C03 C04 C06 C08 C09 C10 C11 C13 E02 E03 S01 S02 S03 S04 W01 W02 W03 W04 Total=18 19:00 : Started set up. 19:45 : Power equalized and phasing done on 1154-350. 20:14 : Started command file. '/odisk/gtac/cmd/jroy/34_048_5may.cmd' 21:00 : Stopped command file and observation session is over.